The CogFather is fictional cog created by the works of Panda3D by a YouTuber that goes by the username, "OMGCOOLVIDEOS". The cog appears to be wearing a muscular Sellbot Suit and has a retextured Flunky head with no glasses, and replaced by shrunken models of the Evil Eye cog attack model for its eyeballs, and skin color is simply edited with light-blue coloring. Also, it seems to be wearing the hat used during the Toon-Up gag animation, Bamboo Cane.
In one of the videos, it is seen using the cog attack, Double Talk animation. The original name is CogFather, however many people use this to make their own fan-made Sellbot.